Flue gas desulfurizing tower based on Karman vortex street

Abstract

The invention provides a flue gas desulfurizing tower based on Karman vortex street. The flue gas desulfurizing tower comprises a casing with an internal cavity and a cylindrical Karman vortex streetgenerator arranged in the internal cavity, wherein the cylindrical Karman vortex street generator comprises a spraying liquid pipeline arranged in the cylindrical Karman vortex street generator alongthe length direction of the cylindrical Karman vortex street generator and a plurality of spouts which are arranged in an array form along the length direction of the cylindrical Karman vortex streetgenerator and are communicated with the spraying liquid pipeline; a flue gas inlet is formed in the bottom of the casing; flue gas containing SO2 flows into the casing through the flue gas inlet. Theflue gas desulfurizing tower provided by the invention has the beneficial effects that the Karman vortex street phenomenon is applied in the desulfurizing tower; scales in the spraying liquid pipelineare automatically cleared by vibration generated by the Karman vortex street phenomenon to the Karman vortex street phenomenon generator, so that the problem of scaling in the spraying liquid pipeline is obviously improved and the use cost of the flue gas desulfurizing tower is reduced.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of desulfurization, in particular to a Karman vortex street-based flue gas desulfurization tower. [0003] 【Background technique】 [0004] When the fluid bypasses a bluff object, the paired, alternately arranged, antisymmetric vortices with opposite rotation directions generated on the left and right sides of the object's wake are called Karman vortex streets. Karman vortex street is a phenomenon studied in viscous incompressible fluid dynamics. Karman vortex street will be generated when fluid flows around tall chimneys, high-rise buildings, wires, oil pipelines and tube bundles of heat exchangers. When a vortex street appears, the fluid will produce a periodic alternating lateral force on the object. If the frequency of the force is close to the natural frequency of the object, it will cause resonance and even damage the object. This vortex street has made the periscope of the submarine lose its...

AI Technical Summary

Problems solved by technology

Due to the high temperature of the spray pipe, when the water evaporates, it is easy to scale on the inner wall of the spray pipe, especially it is easy to cause the nozzle to be blocked.

It is also difficult to remove the scale accumulated in these spray pipes and nozzles. Whether it is cleaning or replacing the spray pipes, it will inevitably increase the cost of use.

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